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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/ash/clipboard/clipboard_image_model_factory_impl.h"
#include <algorithm>
#include "chromeos/ash/components/browser_context_helper/browser_context_helper.h"
#include "components/user_manager/user.h"
#include "components/user_manager/user_manager.h"
ClipboardImageModelFactoryImpl::ClipboardImageModelFactoryImpl()
: idle_timer_(FROM_HERE,
base::Minutes(2),
this,
&ClipboardImageModelFactoryImpl::OnRequestIdle) {}
ClipboardImageModelFactoryImpl::~ClipboardImageModelFactoryImpl() = default;
void ClipboardImageModelFactoryImpl::Render(const base::UnguessableToken& id,
const std::string& html_markup,
const gfx::Size& bounding_box_size,
ImageModelCallback callback) {
DCHECK(!html_markup.empty());
pending_list_.emplace_front(id, html_markup, bounding_box_size,
std::move(callback));
StartNextRequest();
}
void ClipboardImageModelFactoryImpl::CancelRequest(
const base::UnguessableToken& id) {
if (request_ && request_->IsRunningRequest(id)) {
request_->Stop(
ClipboardImageModelRequest::RequestStopReason::kRequestCanceled);
return;
}
auto iter = std::ranges::find(pending_list_, id,
&ClipboardImageModelRequest::Params::id);
if (iter == pending_list_.end()) {
return;
}
pending_list_.erase(iter);
}
void ClipboardImageModelFactoryImpl::Activate() {
active_ = true;
StartNextRequest();
}
void ClipboardImageModelFactoryImpl::Deactivate() {
active_ = false;
// Rendering will not stop if |active_until_empty_| has been set true by a
// call to `RenderCurrentPendingRequests()`.
if (active_until_empty_) {
return;
}
if ((!request_ || !request_->IsModifyingClipboard())) {
return;
}
// Stop the currently running request if it is modifying the clipboard.
// ClipboardImageModelFactory is `Deactivate()`-ed prior to the user pasting
// and a modified clipboard could interfere with pasting from
// ClipboardHistory.
pending_list_.emplace_front(request_->StopAndGetParams());
}
void ClipboardImageModelFactoryImpl::RenderCurrentPendingRequests() {
active_until_empty_ = true;
StartNextRequest();
}
void ClipboardImageModelFactoryImpl::OnShutdown() {
// Reset |request_| to drop its reference to BrowserContext, specifically the
// RenderProcessHost of its WebContents.
request_.reset();
}
void ClipboardImageModelFactoryImpl::StartNextRequest() {
if (pending_list_.empty()) {
active_until_empty_ = false;
}
if (pending_list_.empty() || (!active_ && !active_until_empty_) ||
(request_ && request_->IsRunningRequest())) {
return;
}
if (!request_) {
// Use the primary user instead of the active user to create the
// `content::WebContents` that renders html.
request_ = std::make_unique<ClipboardImageModelRequest>(
user_manager::UserManager::Get()->GetPrimaryUser()->GetAccountId(),
base::BindRepeating(&ClipboardImageModelFactoryImpl::StartNextRequest,
weak_ptr_factory_.GetWeakPtr()));
}
// Reset the timer that cleans up |request_|. If StartNextRequest() is not
// called again in 2 minutes, |request_| will be reset.
idle_timer_.Reset();
request_->Start(std::move(pending_list_.front()));
pending_list_.pop_front();
}
void ClipboardImageModelFactoryImpl::OnRequestIdle() {
if (!request_) {
return;
}
DCHECK(!request_->IsRunningRequest())
<< "Running requests should timeout or complete before being cleaned up.";
request_.reset();
}
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